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/*
* Copyright 2002-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.lang;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.annotation.Nonnull;
import javax.annotation.meta.TypeQualifierDefault;
/**
* A common Spring annotation to declare that parameters and return values
* are to be considered as non-nullable by default for a given package.
*
* Leverages JSR-305 meta-annotations to indicate nullability in Java to common
* tools with JSR-305 support and used by Kotlin to infer nullability of Spring API.
*
*
Should be used at package level in association with {@link Nullable}
* annotations at parameter and return value level.
*
* @author Sebastien Deleuze
* @author Juergen Hoeller
* @since 5.0
* @see NonNullFields
* @see Nullable
* @see NonNull
*/
@Target(ElementType.PACKAGE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Nonnull
@TypeQualifierDefault({ElementType.METHOD, ElementType.PARAMETER})
public @interface NonNullApi {
}